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Rotating mechanism of close compressor

A technology of a closed compressor and a rotating mechanism, which is applied in the field of compressors and can solve problems such as the inability of the crankshaft 5 to rotate, and achieve the effects of smooth rotation, reduced friction, and extended service life

Inactive Publication Date: 2003-11-12
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coupled with the friction between the support surface 5t and the truss surface 2t, the crankshaft 5 cannot rotate

Method used

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  • Rotating mechanism of close compressor
  • Rotating mechanism of close compressor
  • Rotating mechanism of close compressor

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Embodiment Construction

[0016] Embodiments of the present invention are further described below in conjunction with accompanying drawings:

[0017] The present invention is a rotary mechanism of a hermetic compressor. Its structure includes a crankshaft 30 connected to the motor rotor and installed in the central through hole 22 of the frame 20. There is a through oil channel in the crankshaft 30 from the lower end to the upper end of the eccentric shaft 34. The contact between the truss surface 24 above the frame 20 and the balance weight 36 of the crankshaft 30 and the support surface 38 below the eccentric shaft 34 is a line contact.

[0018] The above-mentioned line contact is the contact line 27 formed by the intersection of the inverted conical surface 26 centered on the center line of the central through hole 22 of the frame 20 and the right conical surface 25 centered on the center line of the central through hole 22 of the frame 20 on the truss surface 24 .

[0019] The contact line 27 on th...

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PUM

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Abstract

The present invention relates to a rotating mechanism of closed compressor, which comprises crankshaft which is connected with motor rotor and mounted in the central through hole of machine frame, a through oil channel is formed in the eccentric shaft from lower end to upper end in the crankshaft, and the contact of the truss surface on the machine frame and counterbalance and supporting surface under the eccentric shaft is linear contact, so that their contact surface is smallest, and the friction force between them can be effectively reduced, and the rotation of the crankshaft is more smooth. Said invention can conveniently supply oil required for lubrication between the supporting surface of the crankshaft and truss surface of machinef rame to minimize wear and prolong the service life of compressor.

Description

technical field [0001] The present invention relates to a compressor, in particular to a rotary mechanism of a hermetic compressor. Background technique [0002] figure 1 It is a schematic diagram of the internal structure of a hermetic compressor in the prior art. As can be seen from the figure, the upper container 1t and the lower container 1b constitute the inner space of the closed container 1 . Inside the closed container 1 there is a frame 2 . The frame 2 is supported by the spring 2S. A crankshaft 5 is installed through the center of the frame 2, and the crankshaft 5 is contained in the rotor 40, and the rotor 40 and the stator 3 rotate together with the crankshaft 5 under electromagnetic action. [0003] The eccentric shaft 5 b at the upper end of the crankshaft 5 is shifted relative to the rotation center of the crankshaft 5 . There is a balance weight 5c in the opposite direction of the eccentric shaft 5b. The lower end of the crankshaft 5 is equipped with an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B27/08F04B39/02
Inventor 李信熙
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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